Elevator



Dec. 8, 1925- -1,591,977

W. P. SCHLINGER ELEVATOR Filed June 16, 1925 Patented Dec. 8,v 1925.

h UNITED STATES WILLIAM I. SCHLINGER, OF OXNARD, CALIFORNIA.

ELEVATOR.

Application :filed June 16,4 19x23. Serial' No. 645,804.

To all whom it may concern:

Be it known that I, WILLIAM P. SGHLINGER, a citizen of the UnitedStates, re siding at Oxnard, in the county of Ventura and State ofCalifornia, have invented a new and useful Elevator, of which the fol-ylowing is a specification. This invention relates to a class of devicesemployed in the well drilling art for grip-- ping certain parts such asthe casing or sucker rod so that the same may be elevated or lowered inorder to connect or disconnect their sections, such devices beingcommonly known as elevators; and this invention refers particularly toan elevator intended to handle sucker rods, although it is not theintention to llimit this invention to its em bodiment as a sucker rodelevator.

The primary object of this invention is to provide an elevator whichupon engagement with a sucker rod or similar member will automaticallylock the sucker rod in the elevator, and to provide such lockingmechanism for the elevator lwhich may be readily released from theelevator so that the sucker rod may be rapidly removed from theelevator, and upon the removal of the sucker rod will force the lockingor latching mechanism thereof into the positionyproper for againengaging another section of the rod. f

The elevators heretofore provided for sucker rods or the like haveeither required a manually `operated locking mechanism which must beinserted in place aft-er the elevator grips the rod, or the lockingdevice has been diflicult to unlock so thatv the rod may be removed fromthe elevator, and one of the principal objects and advantagesof thisinvent-ion resides in the ease and rapidity with which the elevator maybe locked to and disconnected from a sucker rod.V

Another object of this invention is to provide an elevator which 1s ofdurable and economical construction and retains the advantagesheretofore set forth.

The objects and advantages of this invention' will be apparent from thedescription hereinafter contained andwill present themselves in thepractice of the same. This invention includes certain novel combinationsand association of parts, all of which will be apparent from thedrawings and description.

In the accompanying drawings the preferred embodiment of the inventionis set forth, and the invention is shown as embodied in the sucker rodelevator. Various modifications may be made in the device hereinafterdescribed without departing from the spirit ofthe invention, and thisinvention is not limited toits use as a sucker rod elevator or to thespecific construction or details of parts hereafter described.

The invention is of the scope set forth in the appended claims'.

In the drawings :',r y

`Figure 'l is a front elevation of this embodiment'of the inventionwith` the member or link employed for suspending the elevator brokenaway.

Fig. 2 is a vertical section on the line 2 2 y V of Figure l. e

3 isfa plan view of the elevator with the suspension member or linkremoved and with the latching mechanism in the open position. e

Fig.4`is applan View similar to Figure 3 with the latching mechanism inthe closed v l position. 1 i v Fig. 5 is a section on the line 5-#5 ofFigure. 3. Y

Referring tothe drawings, lv indicates `the body of the elevator whichprovidestwo opposed trunnions 2 by which the elevator" is connected to'asuspension member 3. Said member 3 may be either asingle link or doublelinks or any other preferred member for suspending the elevator. Thetrunnions 2 are preferably axially alined, the axis of the trunnionspreferably extending throughr thecenter, or substantially through thecenter, of gravity ofthe elevator. Y f

lThe body 1 of theelevator provides a rod receiving way 8f preferablyextending at right angles from the axis of the trunnions 2 and shaped toclosely lit the rod or casing to be held by the elevator, Therod-receiving wa 3 preferably terminates in a cylindrical wa l 3aplace-d so that when the sucker rod is forced into the elevatorandagainst the end wall 3a of its receiving way, it will be held insubstantially the center of theelevator' and in alinernentV with theaxis ofthe trunnions 2. f

1 The top of the body'l is recessed, as indicated at 5, to accommodate amember-4c which operates as a closure for the rod-receiving way 3. Saidmember is preferably pivotally mounted on a vert-ical pin or screw 6which is alined with the axis of the trunnions 2, the member-or closure4 being substantially equal in height to the depth ot the recess 5 inthe body 1, so that the top of said member or closure 4 extends iiushwith the top ot the body 1. The member 4 is mainly of U-shape havingtivo arms 7 and 8 which define a rod-receiving Way 9 substantially equalin Width to the rod receiving Way 3 and extending late-relly'from. thepin or-screW 6 mounting the member 4 so that in the closed position thereceiving Way 9 intersects the receiving Way 3 at right angles, and inthe open position said receiving Way extends diagonal to thereceivingivay 3. The arm thus serves as a door 'for the receivingway 3.The outer edge of said arm is preferably shaped to engage the inner Wallof the recess 5 when in the open position,` as indicated in Figure, andthe end of the arm 7 is cut away substantially flush with said receivingWay 8 .when in the position indicated in Figure S. rllhe arm 8 in theopen position extends diagonally across` the receiving Wayl 3 and inposition to be engaged by a sucker rod or the like When the same isforced into the elevator and rotate the closure 4 into the closedposition indicated in Figure 4.

The recess 5 ot the body extends to the rear of the closure 4 andterminates in a guide Way 10 extending parallel to the rodreceiving way3. Said guide Way 10 mounts a latch control member 11. The latch control.member 411 is rectangular in shape. The rear end 25ct the member 11 isbent slightly downwarthas indicated in Figure 2, to provide a handle foroperating the member, the under portion 27 of said end26 beinggcut away.28 indicates a rectangularopeningin the torW-ardend of the controlmember. l11, which slidably engages a vertically extendinglug 13 ofthebody 1. Said lugl'provides a vertically disposed openingiin Which isguideda dog 15 extending parallelto the rod-receivingivay 8 andV throughan` opening 1 6 in airont Wall`18 yofthe latch controlling member 11. Apin- 19 extends transversely through the dog 15 between the front Wall18 ot' thecontrol memberll and the-lugzl. A spring 20 is'co-iled aroundthe dogl abutting said pin 19 and lug 13.

2,1, indicatesv a small depression in the closure 4 which engages thedog;15 in the open position, as indicated in Figure thus the closure isyieldingly maintained in the open position. The depression 21 ispreferably ot insufficient depth'topermit,the-dog 15 to have a looking`engagement vwith the member 4 so that a pressure on the armB maydisengage the dog 15 from the depression21 and rotate the closure 4 intothe position indicated` in- Figure 4. In such posi.-` tion the dog 15engages a recess 22in the arm 8 ot suliicient depth to provide a lockingengagement between the arm 8 and dog 15 to thereby lock the closure 4across the rod receiving `Way 3. The dog 15 may then be released fromthe closure 4 by a pull on 'the rear end 2G of the controlling member11. By drawing said member 11 to the rear ot the elevator, the frontWall 18 will engage the pin 19 extending through the Vdog` 15 and thusWithdraw the dog 15 from the opening 22. In this position the sucker rodor Similar device gripped in the elevator may be pulled away trom theelevator through the rod-receiving Way 3 and as the rod is Withdrawnfrom the elevator, the same Will engage the arm 7 of the closure 4 androtate the same into the open position.

23 indicates a plate Which. rests upon the top ot the elevator and isheld in place-by sere-Ws 24inserted1into4 the body 1. Saidplateisprovided with a rod-receivingway 25 complementary to therodreeeiving Way 8 ot the body l. f

It Will be seen thatby this construction the closure 4 of the elevatormay be yield'- inglyimaintained in the openT position, as indieated iniFigure 3,' and when engaged with a sucker rod the closure 4 Willautomatical# ly be rotated into the closed position and locked invplace, thus prevent-ingthe sucker rod from being disengaged trom thevelevator. A slight pull -on the control member 11 of the elevator willrelease the closure 4 and permit the sucker rod to be Withdrawnfrom theelevator, and the Withdrawal of the elevator will position the partsagain into the position for engagingk a second section ot' the rod.

By this constructionthe elevatork is provided With a closure or latchWhich auto matieallyv locks the krod or casing in the elevator when theelevator is inserted therein and the rodor casing can be released fromelevator by gripping the latch control member and exerting a-pull onsaid member in the direction tending to forcethe rodfor casing againstthe closure, a single pull in one direction releasing the locking meansfrom the closure and withdrawing the elevator from the rod or casing;

lclaim:

1. A rod elevator comprisinga body having a rod receiving Way, a closurefor the rear oit' the Way, a dog engaging the closure to yieldinglymaintainl the closure across the Way in open position, a control memberfor ivithdraivingthe dog trom theclosure, means at the rear ot' theclosure to form a positive loclringengagement with said dog in theclosed position, and a shiftably mounted controlr member operative tomove the dogifrom ythe locked position.

2. Arod elevator comprising, a` body' having; ayreceiving Way, ,avclosure memberV for the Way, a dog, spring means yieldingly urging thedog against the closure member, and a control member for withdrawing thedog from the closure member, said member being sliiftable in a directiontending to pull the elevator away from the rod.

8. A sucker rod elevator comprising a body having a receiving Way, apivotally mounted closure member having two arms defining a receivingway intersecting the first Way, one arm closing the first Way in theclosed position and the other arm extending into the lirst way in theopen position to engage a sucker rod inserted therein and pivot thesecond member across the Way, a dog yeldingly urged against the closuremember to yieldingly maintain the member in the open position andengaging a recess in said member to lock the member in the closedposition, and a control member slidably mounted by the body andoperative to Withdraw the dog and release the closure member.

4. An elevator for casing, sucker rods or the like, comprising a bodyhaving a receiving Way, a closure forthe way, means eX- tending into theclosure Way to engage av sucker rod inserted therein and yautomaticallymove the closure across the way, an automatic latch for locking theclosure 1n the closed position, and a reciprocating latch t WILLIAM P.'SCHLINGER

